spinach and smashed egg toast

INGREDIENTS

• 1 large egg
• 1 slice of your favorite hearty bread
• 2 ounces baby spinach
• 1 pat butter
• 1 tablespoon minced shallot or white onion
• 1 tablespoon heavy cream
• Sea salt and freshly ground black pepper
• 1 teaspoon smooth Dijon mustard
• 1 tablespoon crumbled cheese, such as goat cheese or feta